/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: a
 * Date: 2022-11-13
 * Time: 12:11
 */
public class Second {
    private First first;

    public Second(){
        first = new First();
    }

    public void doSecond(){
        first.doFirst();
        System.out.println("开始执行第二步");
    }
}
